Originally Posted By: cientortas
How is the cleaning ability of the new Belgian 0w-30 formulation? I have a new to me 2003 BMW 540i (80K miles) that has some typical varnish under the oil filler cap. I'm worried that an introduction to BC after this car has seen extended OCIs with BMW factory oil may breakup engine varnish and screw up hydraulic lifters and other small oil passages.
I'd prefer to use BC, if I can avoid any issues from it cleaning too much too quickly.
Suggestions?
What? no more Q?
No experience yet with the BC 0w-30, have 8 qt but may blend for the next oil change in the avant.
I used both the gold and the green GC 0w-30 in the VH45DEs with good results--for whatever that is worth.
you know what the NICO varnish treatment would be....1 can of BG quik clean on a hot engine with clean sacrificial oil, run for 30+ minutes, keep the revs below 4000 and drain hot, before the varnish re-attaches. then refill with the BC 0w-30.
Edit: oh, and of course new filter after the quik clean drain.
How is the cleaning ability of the new Belgian 0w-30 formulation? I have a new to me 2003 BMW 540i (80K miles) that has some typical varnish under the oil filler cap. I'm worried that an introduction to BC after this car has seen extended OCIs with BMW factory oil may breakup engine varnish and screw up hydraulic lifters and other small oil passages.
I'd prefer to use BC, if I can avoid any issues from it cleaning too much too quickly.
Suggestions?
What? no more Q?
No experience yet with the BC 0w-30, have 8 qt but may blend for the next oil change in the avant.
I used both the gold and the green GC 0w-30 in the VH45DEs with good results--for whatever that is worth.
you know what the NICO varnish treatment would be....1 can of BG quik clean on a hot engine with clean sacrificial oil, run for 30+ minutes, keep the revs below 4000 and drain hot, before the varnish re-attaches. then refill with the BC 0w-30.
Edit: oh, and of course new filter after the quik clean drain.
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